<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        // function Phone(){

        // }

        // Phone.name = '手机'
        // Phone.change = function(){
        //     console.log("我可以改变世界");
        // }
        // Phone.prototype.size = '5.5inch'

        // let nokia = new Phone()
        // console.log(nokia.name);
        // console.log(nokia.size)

        class Phone{
            //静态属性
            static name = '手机'
            static change(){
                console.log("我可以改变世界");
            } 
        }
        //对于 static 标注的属性和方法 属于类而不属于实例对象
        let nokia = new Phone()
        console.log(nokia.name);//undefined
        console.log(Phone.name);//手机
    </script>
</body>
</html>